Patent US2664388A successfully refreshed from Google Patents.
US2664388A
Expired / Lapsed
US
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Hydrocarbon fuel oil of lowered pour point
Assignee: ExxonMobil Oil Corp
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Filing: 1951-09-19
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Granted: 1953-12-29
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Expires: 1971-09-19
Abstract
No abstract record available.
Inventors
- 👤 James S Winterhalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1616
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
HYDROCARBON FUEL OIL CONTAINING BETWEEN ABOUT 0.05 PER CENT AND ABOUT 7 PER CENT, BY WEIGHT, OF A RESIDUAL STOCK OBTAINED FROM CRUDE PETROLEUM PRODUCTED IN THE SMACKOVER FIELD, WHICH STOCK HAS THE FOLLOWING PROPERTIES:
Claim 2
Dependent Claim
35 words
HYDROCARBON FUEL OIL CONTAINING BETWEEN ABOUT 0.05 PER CENT AND ABOUT 7 PER CENT, BY WEIGHT, OF A RESIDUAL STOCK OBTAINED FROM CRUDE PETROLEUM PRODUCTED IN THE SMACKOVER FIELD, WHICH STOCK HAS THE FOLLOWING PROPERTIES:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |